Mann and jacob blendebmann



(No Model.)

W. D. ADAMS.

STEAM GENERATOR.

No. 341,122. Patented May 4, 1886.

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UNITED STATES PATENT OFFICE..

VILLIAM D. ADAMS, OF NEV YORK, N. Y., ASSIGNOR IO HENRY BLENDER- MANN AND JACOB BLENDERMANN, OF SAME PLACE, JOHN OUMMISKEY, OF BROOKLYN, AND SOPHIE E. ADAMS, OF NEV YORK, N. Y.

STEAM-GENERATQR.

SPECIFICATION forming part of Letters Patent No.341,122, lated May 4, 1886.V

Application filed January 27, 18H6. Serial No.19,908. (No modell .To @ZZ whom, it may concern: rIhe boilers should have the usual or other 5o Beit known that I, WILLIAM D. ADAMS, of the city and county of New York, in the State of New York, have invented a new and useful A B designate lower and upper cylindric multitubular boilers arranged in a setting, here shown as consisting of the front C and brick-work C. The lower boiler, A, is filled with or contains fire-tubes c throughout the entire area of its transverse section; but the upper boiler, B, contains similar tubes, b, in its lower portion or half only, the remaining -or upper portion being designed for steamspacc, which may be supplemented by a dome, B.

The boilers are connected by athroat or passage, c, near one end, and in the operation f suitable arrangement of steam, feed, and blowoff pipes and valves, which I have not shown, as they 'form no part of my invention.

water-space and a large area of eifcctive heating-surface, and as the upper boiler, B, is not subjected to so intense heat as is thelower one the ebullition therein will be less violent and dry steam will be produced.

If desired, a single boiler, B, might be arranged above and between two others, each similar to A, and such a construction and ar` rangement is within theseope of my invention.

Improvement in Steam-Generators, of which Beneath the lower boiler, A, at the front the following is a specification. thereof, is the usual furnace, D, with grate- 5 5 My invention relates to that class of generbars e and fire and ash-pit doors g, and inthe ators in whichv two cylindric niultitubular setting are horizontal partitions ordivisionboilers are arranged one above another and plates h ij, by which the products of combus To connected by a throat or passage which protion are caused to take the course indicated by vides for circulation between them; and the arrows in Fig. l. From the furnace D the hot 6o invention consists in novel combinations of products of combustion pass over the bridgeparts, which are hereinafter described, and wall D rearward, under the lower boiler, A, pointed out in the claims. thence forward through the iire-tubes c, thence In the accompanying drawings, Figure l is rearward between the upper and lower boila longitudinal vertical section of a generator ers, thence forward through the tubes b, and 65 embodying my invention, and Fig. 2 is a transfinally rearward over and around the upper n verse vertical section on the plane ofthe dotboiler, B, to the chimney-outlet E.

ted line :n x, Fig. l. By the simple and inexpensive construction '2o Similar letters of reference designate correand arrangement above described I provide a spending parts in both figures. generator in which there is alarge amount of 7o By describing` A and B as cylindric multi- 8o tubular boilers I do not mean that they must be truly cylindric, as they may be larger in diameter at one end than the other-,but only the generator the water-level will be above the intend to refer to the type of structure of tubesb in the upper boiler, B, thelower boiler, which they are examples. 85 A, being entirely filled with water. A simi- It will be observed that according to my iular connecting throat or passage might be provention the two multitubnlar boilers are ap vided near the other end, but as unequal exproXimately equal in lengt h and the furnace 40 pansion in the two boilers might strain these D is arranged under one end portion of the connections, if two were employed, I prefer to lower boiler, A. rIhis arrangement of the l'ur- 9o arrange at the back end asaddle, d, supported nace, in connection with the form of setting on the lower boiler, and on which the upper which l have shown, is very desirable, because boiler is supported and may adjust itself. then the products of combustion are compelled I prefer to arrange the lower boiler in a poto pass from thefurnace rearward beneath the sitioninclinedslightlyupwardtowardits front lower boiler, A, thence forward through the end, or toward the end at which is the throat or passage c, so as to facilitate the circulation between it and the upper boiler.

tubes of the lower boiler, thence rearward between the two boilers, and again forward through the tubes of theupperboiler.. In this 2 seriez way nearly all the available heat is absorbed from the hot products of combustion before they make their escape, and the utmost simplicity of construction and arrangement is secured. Itis also advantageous to employ a throat or passage connecting the boilers at one point only, in order to provide for their unequal expansion without injurious straining t0 the throat or connection, and it is advantageous to have the lower boiler inclined slightly downward from that end at which is the connection or throat c toward thc other end, because by such an arrangement the ci rculation between the two boilers and the cscape of steam from the lower boiler into the upper boiler will be facilitated.

That I here claim as my inventiomand desire to secure by Letters Patent is@ l. In a steam-generator, the combination of two eyliudric inultitubular boilers arranged one above the other and of approximately equal length, and connected by a throat or pas sage for circulation between them, a furnace under one end portion of the lower boiler, and a setting for the generator arranged substantially as described, whereby the products of combustion are caused to pass from the furnace rearward under the lower boiler, thence forward through the tubes thereof, thence rearward between the boilers, and then forward through the tubes of the upper boiler, substantially as herein set forth.

2. In a steam-generator, the combination of the lower and upper eylindric inultitubular boilers, A B, of approximately equal length, the throat or passage c connecting them at one end, and the lower boiler, A, having a down ward inclination from the end at which is the throat or passage c, and the furnace l), under the end portion of the lower boiler, substantially as herein described.

The combination of the two cylindric multitubular boilers arranged one above another and connected by a passage or throat, c, at one end and having between them at their opposite ends a saddle, d, on which the upper boiler is supported and may move, substantially as herein described.

fi. The con'ibination, with the lower and upper cylindric multitubular boilers connected by a throat or passage for circulation, of a setting comprising a furnace, l), aud partitions, whereby the products of combustion are caused to take the course described in their passage from the furnace to the chimney-outlet, substantially as herein set forth.

NVILLTAM D. ADAMS.

Vituesses:

Fannie Harmes, HENRY McBRInn. 

